html {
	background-color: bisque;
}
#loginTop {
	height: 70px;
	background-color: #1E303F;
}
.systemName {
	color: white;
	padding-left: 80px;
	font-size: 30px;
	/* 以下的两行使得当前元素的文字内容垂直中对齐 */
	height: 70px;
	line-height: 70px;
	font-weight: bolder;
}
#loginTop img{
	position: relative;
	top: 8px;
}
#loginBottom {
	background-color: #1E303F;
	position: absolute;
	height: 40px;
	left: 0px;
	right: 0px;
	bottom: 0px;
	
	/* 垂直中对齐 */
	line-height: 40px;
	/* 水平中对齐 */
	text-align: center;
	
	color:white;
	font-size: 16px;
}

#loginMiddle {
	background-color: #1E303F;
	position: absolute;
	top: 70px;
	bottom: 40px;
	left: 0px;
	right: 0px;
}

.middleHeightAndWidth {
	width: 630px;
	height: 530px;
	float: left;
}

#loginInfors {
	background-color: white;
	margin-left: 10px;
}

.middleContent {
	position: absolute;
	top: 0px;
	bottom: 0px;
	left: 0px;
	right: 0px;
	margin: auto;
	width: 1270px;
	height: 530px;
}

form {
	/* width: 100%; */
	height: 100%;
}

table {
	height: 200px;
	width: 450px;
	position: relative;
	top: 200px;
	bottom: 0px;
	right: 0px;
	left: 0px;
	margin: auto;
}

table th {
	text-align: right;
}

table input {
	height: 30px;
	width: 300px;
	padding: 10px;
}

#submitBtn {
	margin-left: 23px;
	height: 40px;
}

.userImg {
	position: absolute;
	top: 1px;
	left: 67px;
	height: 52px;
}

.loginImag {
	height: 530px;
}

input[name=userName],
input[name=userPassword] {
	padding-left: 56px;
}

.pwdImg {
	position: absolute;
	top: 73px;
	left: 67px;
	height: 50px;
}

.btnTd {
	text-align: right;
	padding-right: 15px;
}
